﻿using System;

namespace appbox.Drawing.Printing
{
	[Serializable]
	public class PageSettings : ICloneable
	{
		internal bool color;
		internal bool landscape;
		internal PaperSize paperSize;
		internal PaperSource paperSource;
		internal PrinterResolution printerResolution;

		// create a new default Margins object (is 1 inch for all margins)
		Margins margins = new Margins();

		float hardMarginX;
		float hardMarginY;
		RectangleF printableArea;		
		PrinterSettings printerSettings;

		public PageSettings() : this(new PrinterSettings())
		{
		}

		public PageSettings(PrinterSettings printerSettings)
		{
			PrinterSettings = printerSettings;

			this.color = printerSettings.DefaultPageSettings.color;
			this.landscape = printerSettings.DefaultPageSettings.landscape;
			this.paperSize = printerSettings.DefaultPageSettings.paperSize;
			this.paperSource = printerSettings.DefaultPageSettings.paperSource;
			this.printerResolution = printerSettings.DefaultPageSettings.printerResolution;
		}

		// used by PrinterSettings.DefaultPageSettings
		internal PageSettings(PrinterSettings printerSettings, bool color, bool landscape, PaperSize paperSize, PaperSource paperSource, PrinterResolution printerResolution)
		{
			PrinterSettings = printerSettings;
			this.color = color;
			this.landscape = landscape;
			this.paperSize = paperSize;
			this.paperSource = paperSource;
			this.printerResolution = printerResolution;
		}

		//props
		public Rectangle Bounds
		{
			get
			{
				int width = this.paperSize.Width;
				int height = this.paperSize.Height;

				width -= this.margins.Left + this.margins.Right;
				height -= this.margins.Top + this.margins.Bottom;

				if (this.landscape)
				{
					// swap width and height
					int tmp = width;
					width = height;
					height = tmp;
				}
				return new Rectangle(this.margins.Left, this.margins.Top, width, height);
			}
		}

		public bool Color
		{
			get
			{
				if (!this.printerSettings.IsValid)
					throw new InvalidPrinterException(this.printerSettings);
				return color;
			}
			set
			{
				color = value;
			}
		}

		public bool Landscape
		{
			get
			{
				if (!this.printerSettings.IsValid)
					throw new InvalidPrinterException(this.printerSettings);
				return landscape;
			}
			set
			{
				landscape = value;
			}
		}

		public Margins Margins
		{
			get
			{
				if (!this.printerSettings.IsValid)
					throw new InvalidPrinterException(this.printerSettings);
				return margins;
			}
			set
			{
				margins = value;
			}
		}

		public PaperSize PaperSize
		{
			get
			{
				if (!this.printerSettings.IsValid)
					throw new InvalidPrinterException(this.printerSettings);
				return paperSize;
			}
			set
			{
				if (value != null)
					paperSize = value;
			}
		}

		public PaperSource PaperSource
		{
			get
			{
				if (!this.printerSettings.IsValid)
					throw new InvalidPrinterException(this.printerSettings);
				return paperSource;
			}
			set
			{
				if (value != null)
					paperSource = value;
			}
		}

		public PrinterResolution PrinterResolution
		{
			get
			{
				if (!this.printerSettings.IsValid)
					throw new InvalidPrinterException(this.printerSettings);
				return printerResolution;
			}
			set
			{
				if (value != null)
					printerResolution = value;
			}
		}

		public PrinterSettings PrinterSettings
		{
			get
			{
				return printerSettings;
			}
			set
			{
				printerSettings = value;
			}
		}

		public float HardMarginX {
			get {
				return hardMarginX;
			}
		}
		
		public float HardMarginY {
			get {
				return hardMarginY;
			}
		}
		
		public RectangleF PrintableArea {
			get {
				return printableArea;
			}
		}

		public object Clone()
		{
			// We do a deep copy
			PrinterResolution pres = new PrinterResolution(this.printerResolution.X, this.printerResolution.Y, this.printerResolution.Kind);
			PaperSource psource = new PaperSource(this.paperSource.SourceName, this.paperSource.Kind);
			PaperSize psize = new PaperSize(this.paperSize.PaperName, this.paperSize.Width, this.paperSize.Height);
			psize.SetKind(this.paperSize.Kind);

			PageSettings ps = new PageSettings(this.printerSettings, this.color, this.landscape,
					psize, psource, pres);
			ps.Margins = (Margins)this.margins.Clone();
			return ps;
		}

		public override string ToString()
		{
			string ret = "[PageSettings: Color={0}";
			ret += ", Landscape={1}";
			ret += ", Margins={2}";
			ret += ", PaperSize={3}";
			ret += ", PaperSource={4}";
			ret += ", PrinterResolution={5}";
			ret += "]";

			return String.Format(ret, this.color, this.landscape, this.margins, this.paperSize, this.paperSource, this.printerResolution);
		}
	}
}
